Thermosetting mold release coating agent, a mold releasing film, and a mold release polyethylene terephthalate film
A technology of thermal curing and coating agent, which can be used in coatings, polyester coatings, polyether coatings, etc., and can solve the problems of film curling and large damage to polyester film.
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Embodiment 1
[0066] 50 parts of Cymel 303LF (full ether type methylated melamine resin: manufactured by Ornex Japan Co., Ltd.), 50 parts of PRIPOL 2033 (number average molecular weight of hydrogenated dimer glycol 540: manufactured by Croda Japan Co., Ltd.), p-toluenesulfonic acid 4 parts were mixed, and methyl ethyl ketone was further added to prepare a coating agent with a solid content of 20%.
Embodiment 2
[0068] Mix 50 parts of Cymel 303LF, 50 parts of Praxel 205 (polyester polyol number average molecular weight 500, manufactured by Daicel Co., Ltd.), 4 parts of p-toluenesulfonic acid, and further add methyl ethyl ketone to prepare a coating with a solid content of 20%. Cloth agent.
Embodiment 3
[0070] 50 parts of Cymel 303LF, 50 parts of Clare Polyol C-1090 (polycarbonate polyol with a number average molecular weight of 1000, manufactured by Kurare Co., Ltd.) and 4 parts of p-toluenesulfonic acid were mixed, and methyl ethyl ketone was further added to prepare the solid content of 20% coating agent.
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